Zebra Angle Measurement For Glass Inspection

Reduce operator-dependent variation in zebra angle testing and visual judgement.

Zebra angle measurement is a method used to evaluate optical distortion by observing how glass affects a zebra pattern.

The zebra pattern makes deformation easier to see. When the glass distorts the pattern, the angle or visibility threshold can be used as an inspection result.

For quality control, the same glass should not produce significantly different results simply because it was tested by a different operator or under slightly different conditions.

Consistent zebra angle measurement helps manufacturers compare production results, review process stability and build clearer inspection records.

Manual zebra angle testing depends heavily on human judgement.

Results can be affected by:

- Viewing position
- Distance from the sample
- Lighting condition
- Zebra board condition
- Operator experience
- Judgement threshold
- Human visual resolution

LUARI FZT-2 is designed to reduce operator-dependent variation in zebra angle evaluation.
The system uses image-assisted analysis to support more repeatable measurement under controlled conditions.
Results can be automatically recorded and used for production comparison, quality review and historical traceability.

FZT-2 Automatic Zebra Angle Testing System

View FZT-2 System →